The real-time monitoring of intravascular oxygen levels is important to accurately track the cardiopulmonary health of patients after cardiothoracic surgery. Existing methods use intravascular placement of glass fiber-optic ...
Optogenetics, a technology that allows scientists to control brain activity by shining light on neurons, relies on light-sensitive proteins that can suppress or stimulate electrical signals within cells. This technique requires ...
Jun 29, 2014
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(Medical Xpress)—A team of researchers at Stanford University has found a way to turn the perception of pain on and off using only a light source. In their paper published in the journal Nature Biotechnology, the team describes ...
Researchers from the University of Alberta (U of A) are working to improve the only oral antiviral approved for COVID-19 infections in the hopes of expanding its use in populations that need it most.
Jan 22, 2024
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Blue light from LED lamps and consumer electronics can mess with your sleep because it disrupts production of the natural sleep hormone melatonin. Tinted glasses or displays in night mode can mask, but don't remove, a portion ...
Dec 14, 2023
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Researchers from The Hospital for Sick Children (SickKids) recently decoded how human antibodies protect us from the malaria parasite, which kills more than 600,000 people worldwide annually. The CMCF facility at the Canadian ...
Nov 27, 2023
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An injectable biomaterial activated by pulses of low-energy blue light has tremendous potential for on-the-spot repair to the domed outer layer of the eye, a team of University of Ottawa researchers and their collaborators ...
Jul 25, 2023
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A Chopin or Mozart composition loses its meaning and magic when played on a piano that's out of tune.
May 27, 2021
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Scientists at Fred Hutchinson Cancer Research Center in Seattle have shown that a potent antibody from a COVID-19 survivor interferes with a key feature on the surface of the coronavirus's distinctive spikes and induces critical ...
Oct 27, 2020
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A team of researchers from the California Institute of Technology, Nankai University and the University of California, Berkeley, has found that the cellular substrates that underlie two types of thirst could be identified ...
Light is electromagnetic radiation, particularly radiation of a wavelength that is visible to the human eye (about 400–700 nm, or perhaps 380–750 nm.) In physics, the term light sometimes refers to electromagnetic radiation of any wavelength, whether visible or not.
Three primary properties of light are:
Light, which exists in tiny "packets" called photons, exhibits properties of both waves and particles. This property is referred to as the wave–particle duality. The study of light, known as optics, is an important research area in modern physics.
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